It is now the 2nd CHALLENGE Period for CACAO Spring 2018! It will end on Monday February 26, 2018 at 05:59 pm CST This is your chance to challenge other team's annotations. You may also DEFEND or suggest improvements to your own annotations IF they have been challenged. Please note, although we ENCOURAGE challenges, an excess of identical challenges that do not appear to be applicable to the annotation or well thought out will be considered spam and ignored.